NPPES file of Aug 9, 2026

Pediatric Hematology & Oncology Physician in California

417 NPPES records list pediatric hematology & oncology physician with a practice address in California, 1.1 per 100,000 residents, the 17th highest rate of 50. Los Angeles and Palo Alto have the most; each record links to the provider's NPI and the California license search. Page 6 of 9.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2080P0207X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 89

  1. Los Angeles89
  2. Palo Alto81
  3. San Francisco53
  4. San Diego41
  5. Oakland25

Pediatric Hematology & Oncology Physician records in California

  1. Brian Na, M.D.Los Angeles, CA 900951780078071
  2. Ramamoorthy Nagasubramanian, MDPalo Alto, CA 943041134279177
  3. Priyanka Nanjireddy, MDLos Angeles, CA 900951811243041
  4. Anupama Narla, M.D.Palo Alto, CA 943041598923195
  5. Pournima Navalkele, MD, MPHOrange, CA 928681366671091
  6. Fariba Navid, MDLos Angeles, CA 900271144223926
  7. Steven Neudorf, MDOrange, CA 928681598848624
  8. Lynne Neumayr, M.D.Oakland, CA 946091568503712
  9. Eric Nickels, MDLos Angeles, CA 900271962900316
  10. Theodore NicolaidesSan Francisco, CA 941431457574816
  11. Theodore Nowicki, M.D., PH.D.Los Angeles, CA 900951730522194
  12. Diane Nugent, M.D.Orange, CA 928681770528663
  13. Katrina O'Halloran, MDLos Angeles, CA 900271538546528
  14. Carol O'Hear, MD, PHDPalo Alto, CA 943041336322577
  15. Jayme OginoLos Angeles, CA 900331366947244
  16. Sara-Jane OnyeamaLos Angeles, CA 900271437684248
  17. James Ozeran, M.D.Madera, CA 936381427060391
  18. Arun Panigrahi, M.D.Sacramento, CA 958171023286002
  19. Chintan Parekh, M.D.Duarte, CA 910101568785004
  20. Priya Parikh, MDSan Francisco, CA 941431811429624
  21. Joseph Park, M.D., PH.D.Palo Alto, CA 943041447574306
  22. Robertson Parkman, MDPebble Beach, CA 939531326118761
  23. Ramesh Patel, MDLong Beach, CA 908061083727051
  24. Philip PauersteinSan Francisco, CA 941581437680923
  25. Megan Paul, M.D.San Diego, CA 921231427495894
  26. Anjali Pawar, M.D.Sacramento, CA 958171851425060
  27. Anna Pawlowska, MDDuarte, CA 910101023125804
  28. Ralph PeneSan Diego, CA 921341306900022
  29. Cheryl Peretz, MDSan Francisco, CA 941581164780409
  30. Patricia PetersonLos Angeles, CA 900271043486574
  31. Philip Pizzo, MDPalo Alto, CA 943041487789756
  32. Natalie Plotkin, MS, ACPNPOakland, CA 946091003326323
  33. Matthew Porteus, MDPalo Alto, CA 943041184684797
  34. Willye Powell, MDBellflower, CA 907061447319108
  35. Allison Pribnow, MDPalo Alto, CA 943041386939296
  36. Michael Pulsipher, M.D.Los Angeles, CA 900271932150315
  37. Latika Puri, MDOakland, CA 946091609182120
  38. Geetha Puthenveetil, M.D.Los Angeles, CA 900951174626683
  39. Bo Qiu, M.D. PH.D.San Francisco, CA 941581043741523
  40. John Quinn, MDLos Angeles, CA 900271962594465
  41. Naveen Qureshi, M.D.Downey, CA 902421962652016
  42. Karen Rabin, MDSan Francisco, CA 941431760562185
  43. Rukmani Raghunathan, MDAnaheim, CA 928071578630588
  44. Ruyan Rahnama, MDSan Francisco, CA 941431740643766
  45. Sneha Ramakrishna, MDPalo Alto, CA 943041093078313
  46. Arun Rangaswami, MDPalo Alto, CA 943041326173642
  47. Aarati Rao, MDRoseville, CA 956611780610949
  48. Latha Rao, M.D.Madera, CA 936361740447267
  49. Rameshwar Rao, MDPalo Alto, CA 943041700313996
  50. Robert Raphael, M.D.Oakland, CA 946111144387408

Source: CMS NPPES, primary taxonomy 2080P0207X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 17 of 50 per resident

  1. Indiana1.2
  2. Wisconsin1.1
  3. Vermont1.1
  4. California1.1
  5. Texas1.0
  6. Connecticut1.0
  7. 50 states and D.C.1.1

Source: CMS NPPES, primary taxonomy 2080P0207X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

52.8% of these records appear in a Medicare file, against 50.9% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California52.8%
  2. United States50.9%

Pediatric Hematology & Oncology Physician records in California, measured

  • In a Medicare file220 of 417 · 52.8% here, 50.9% nationally
  • In the CMS Doctors and Clinicians file120 · 28.8% here, 31.2% nationally
  • Not updated in five years or more243 · 58.3% here, 54.5% nationally
  • Median graduation year2004 · the 120 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080P0207X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

417 NPPES records list pediatric hematology & oncology physician (2080P0207X) as their primary taxonomy with a practice address in California: 1.1 per 100,000 residents against 1.1 nationally (50 states and D.C.). Los Angeles has 89 of them (21%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Texas319
  2. New York289
  3. Pennsylvania218
  4. Massachusetts197

States with a similar rate per 100,000

  1. Connecticut1.0
  2. Michigan1.0
  3. Wisconsin1.1
  4. Maine1.0

The largest states

  1. Texas319
  2. New York289
  3. Pennsylvania218
  4. Massachusetts197
  5. Ohio191

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.